Tehuantepec Forecast

January 21, 2026, 3:01 am (UTC: -05:00)
Subject: Tehuantepec Forecast

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This forecast has not been reviewed. It was generated from an automatic model.

.WARNINGS.

...GALE WARNING...
.WITHIN 15N93W TO 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N94W
TO 15N93W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO
40 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N94W TO 15N97W TO
13N97W TO 13N94W TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO
3.0 M. REMAINDER OF AREA WITHIN 11N93W TO 13N98W TO 10N111W TO
05N108W TO 03N101W TO 06N93W TO 11N93W NE TO E WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...
N WINDS 20 TO 30 KT. SEAS TO 2.5 M. ELSEWHERE WITHIN 13N98W TO
10N103W TO 08N115W TO 06N113W TO 05N101W TO 08N95W TO 13N98W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
15N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.

.WITHIN 15N93W TO 16N94W TO 16N95W TO 16N96W TO 14N96W TO 14N94W
TO 15N93W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 30 TO
40 KT. SEAS 2.5 TO 3.0 M. ELSEWHERE WITHIN 14N94W TO 15N97W TO
13N97W TO 13N94W TO 14N94W N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO
3.0 M. REMAINDER OF AREA WITHIN 11N93W TO 13N98W TO 10N111W TO
05N108W TO 03N101W TO 06N93W TO 11N93W NE TO E WINDS 20 TO 25 KT.
SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 15N96W TO 14N96W TO
14N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC...
N WINDS 20 TO 30 KT. SEAS TO 2.5 M. ELSEWHERE WITHIN 13N98W TO
10N103W TO 08N115W TO 06N113W TO 05N101W TO 08N95W TO 13N98W
WINDS 20 KT OR LESS. SEAS 2.5 TO 3.0 M IN NE SWELL.
.48 HOUR FORECAST WITHIN 16N94W TO 16N95W TO 16N96W TO 15N96W TO
15N95W TO 15N94W TO 16N94W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 20 TO 30 KT. SEAS LESS THAN 2.5 M.

GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN
STRONG HIGH PRESSURE NORTH OF THE AREA AND THE EASTERN NORTH
PACIFIC MONSOON TROUGH IS SUPPORTING GALE- FORCE N GAP WINDS OVER
THE GULF OF TEHUANTEPEC. THIS GALE, ALONG WITH ROUGH SEAS, WILL
LIKELY LAST INTO WED MORNING. MARINE INTERESTS TRANSITING ACROSS
THE GULF OF TEHUANTEPEC INTO THE MIDDLE PART OF THE WEEK SHOULD
BE AWARE OF THESE GALE- FORCE GAP WINDS AND TAKE THE NECESSARY
ACTION TO AVOID HAZARDOUS MARINE CONDITIONS OVER THE AFFECTED
WATERS.
FRESH TO STRONG GAP WINDS, AND SEAS OF 6 TO 9 FT, PREVAIL ACROSS
THE GULF OF PAPAGAYO, EXTENDING SW TO 90W. ROUGH SEAS OF 7 TO 9
FT ARE WELL OFFSHORE GUATEMALA AND EL SALVADOR IN SWELL GENERATED
BY THE GULF OF TEHUANTEPEC GALE FORCE GAP WIND EVENT. ELSEWHERE,
WINDS ARE MODERATE OR WEAKER WITH SEAS IN THE 3 TO 5 FT RANGE.
FOR THE FORECAST, THE PRESSURE GRADIENT BETWEEN HIGH PRESSURE
NORTH OF THE AREA AND THE EASTERN NORTH PACIFIC MONSOON TROUGH
WILL SUPPORT FRESH TO STRONG NE TO E WINDS AND ROUGH SEAS IN THE
PAPAGAYO REGION THROUGH THE WEEKEND. THE PRESSURE GRADIENT WILL
ALSO SUPPORT PULSING OF MODERATE TO FRESH N WINDS OVER THE GULF
OF PANAMA THROUGH THE END OF THE WEEK. ELSEWHERE, WINDS WILL BE
MODERATE OR WEAKER OVER THE FORECAST WATERS THROUGH THE END OF
THE WEEK. NW TO N SWELL GENERATED BY GALES OVER THE GULF OF
TEHUANTEPEC WILL BRING ROUGH SEAS WELL OFFSHORE GUATEMALA AND EL
SALVADOR THROUGH MIDWEEK.

FOR THE FORECAST, THE LARGE NW SWELL WILL GRADUALLY SUBSIDE
THROUGH THE MIDDLE OF THE WEEK. FRESH TO STRONG WINDS FROM THE
GULF OF TEHUANTEPEC AND GULF OF PAPAGAYO GAP WILL SPREAD INTO THE
REGION THROUGH TONIGHT ALONG WITH SEAS OF 8 TO 10 FT. ELSEWHERE,
WINDS SHOULD REMAIN MODERATE OR WEAKER, WITH SEAS LESS THAN 8
FT, FOR THE NEXT SEVERAL DAYS.

SHORT-TERM TEHUANTEPEC
TODAY - NNW 22-28, Seas SW 5.1-5.8 ft @ 16sec
TONITE - NNW 22-27, Seas SW 5.9-6.6 ft @ 15sec
THURSDAY - NNW 22-27, Seas SW 5.9-6.6 ft @ 15sec
THURSDAY NIGHT - NNW 16-20, Seas SW 3.9-4.9 ft @ 14sec

LONG-TERM TEHUANTEPEC
FRIDAY - NNW 16-20, Seas SW 3.9-4.9 ft @ 14sec
SATURDAY - Not available yet
SUNDAY - NNW 18-23, Seas SSW 1.1-3.1 ft @ 14sec
MONDAY - N 36-45, Seas N/A ?-? ft @ ?
TUESDAY - N 38-48, Seas N/A ?-? ft @ ?